No problem, we've got 80354176 and 85310049 to multiply
80354176 × 85310049 = 85310049 × (80354176)
+ 85310049 × 6 resulting in 511860294
+ 85310049 × 70 what gives us 5971703430
+ 85310049 × 100 that equals 8531004900
+ 85310049 × 4000 which equals 341240196000
+ 85310049 × 50000 resulting in 4265502450000
+ 85310049 × 300000 that results in 25593014700000
+ 85310049 × 0000000 resulting in 0
+ 85310049 × 80000000 producing 6824803920000000

= 6855018691914624
